Aromatherapy is actually a way to change the smell of the room, so that the whole life of the space is full of fragrance. This will make people living here have a comfortable mood. But with the smog now severe there are some fragrances with clear lung function for sale. However, it is important to note that these aromas are relatively small, due to the limitations of production technology only a few producers can produce, and the price is more expensive. So don't because the price is cheap and blind to buy, sometimes the quality of the aromawill will bring harm to people.